Denver System Worksheet Karyotype Answers 📥

If your worksheet contains specific chromosome images or a unique abnormality, apply the same Denver System rules, and you will arrive at the correct interpretation.

| Abnormality | Karyotype formula | Worksheet observation | |-------------|------------------|------------------------| | Down syndrome | 47, XY, +21 | Three chromosomes in Group G, specifically extra #21 | | Turner syndrome | 45, X | Only one X, no Y, total 45 chromosomes | | Klinefelter syndrome | 47, XXY | Two X in Group C, one Y in Group G | | Edward syndrome | 47, XY, +18 | Extra chromosome in Group E (#18) | | Patau syndrome | 47, XY, +13 | Extra chromosome in Group D (#13) | | Cri-du-chat syndrome | 46, XX, del(5p) | Deletion of part of the p arm on one #5 chromosome (visible band missing) | denver system worksheet karyotype answers

| Pair | Group | Centromere | Identifying features | |------|-------|------------|----------------------| | 1 | A | Metacentric | Largest, uniform bands | | 2 | A | Submetacentric | Slightly smaller than #1 | | 3 | A | Metacentric | Smaller than #2 | | 4 | B | Submetacentric | Large, dark bands on q arm | | 5 | B | Submetacentric | Lighter banding than #4 | | 6 | C | Submetacentric | Medium, X-like | | 7 | C | Submetacentric | Distinct central band | | ... | ... | ... | ... | | 21 | G | Acrocentric | Satellites on p arm | | 22 | G | Acrocentric | Smaller than #21, satellites | | X | C | Submetacentric | Matches #7 size | | Y | G | Acrocentric | No satellites, slightly larger than #22? (varies) | Mastering the Denver System is essential for any student of genetics, medicine, or laboratory science. When completing a karyotype worksheet, always follow the logical sequence: count → sex chromosomes → group by size → refine by centromere → confirm by banding → diagnose abnormalities . The system provides a universal language that has enabled countless discoveries in prenatal diagnosis, oncology, and evolutionary biology. If your worksheet contains specific chromosome images or